Containing not more than 500 ppm of sulfur

Petroleum oils and oils obtained from bituminous minerals, other than crude; preparations not elsewhere specified or included, containing by weight 70 percent or more of petroleum oils or of oils obtained from bituminous minerals, these oils being the basic constituents of the preparations; waste oils: > Petroleum oils and oils obtained from bituminous minerals (other than crude) and preparations not elsewhere specified or included containing by weight 70 percent or more of petroleum oils or of oils obtained from bituminous minerals, these oils being the basic constituents of the preparations, containing biodiesel, other than waste oils: > Distillate and residual fuel oils (including blended fuel oils): > Testing 25 degrees A.P.I. or more > Having a Saybolt Universal viscosity at 37.8˚C of 45 seconds or more but not more than 125 seconds (No. 4-type fuel oils): > Containing not more than 500 ppm of sulfur

Duty Rate (from China)

25%
MFN Base RateFree

Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Total Effective Rate25%

Products classified under HTS 2710.20.10.15

No. 4 Low-Sulfur Marine Fuel Oil

A No. 4-type distillate fuel oil with Saybolt Universal viscosity between 45-125 seconds at 37.8°C, testing 25° API or more, and containing ≤500 ppm sulfur, designed for marine bunker use. It falls under HTS 2710.20.10.15 due to its specific viscosity, gravity, biodiesel content (≥70% petroleum oils), and low sulfur specification for environmental compliance.

Low-Sulfur No. 4 Generator Fuel Oil

No. 4 diesel blend with biodiesel for backup generators, ≤500 ppm sulfur, ≥25° API, 45-125 SUS viscosity. Meets HTS 2710.20.10.15 criteria for low-sulfur, biodiesel-containing residual/distillate fuel oils.

B20 No. 4 Low-Sulfur Fuel Oil Blend

20% biodiesel (B20) blended No. 4 fuel oil with ≤500 ppm sulfur, 25°+ API gravity, and 45-125 SUS at 37.8°C for industrial burners. Classified in 2710.20.10.15 for biodiesel fuel oils meeting exact physical specs.

No. 4 Ultra-Low Sulfur Industrial Fuel Oil

Industrial-grade No. 4 fuel oil blended with biodiesel, featuring ≤500 ppm sulfur, 25°+ API gravity, and 45-125 SUS viscosity at 37.8°C for use in boilers and heavy machinery. Classified under 2710.20.10.15 for its low-sulfur profile, specific physical properties, and predominant petroleum oil composition.

Biodiesel-Blended No. 4 Heating Fuel Oil

A low-sulfur (≤500 ppm) No. 4 heating oil with biodiesel, 25°+ API, and viscosity 45-125 SUS at 37.8°C, used in commercial heating systems. HTS 2710.20.10.15 applies due to its fuel oil specs, biodiesel inclusion, and sulfur limit per subheading requirements.

Eco No. 4 Boiler Fuel Oil ULS

Ultra-low sulfur (≤500 ppm) No. 4 boiler fuel with biodiesel, viscosity 45-125 SUS, ≥25° API, for stationary combustion. HTS 2710.20.10.15 due to sulfur limit and biodiesel in ≥70% petroleum base.